基本尺寸

截面面积F/cm2

理论质量G/(kg/m)

惯性矩Jx=Jy/cm4

截面系数Wx=Wy/cm3

A

S

mm

12

O.8

1.0

O.348

0 423

O.273

0.332

O.0739

O.0873

O.123

O.146

14

1.0

1.5

0.503

O.712

O.394

O.559

0.144

O.192

O.206

0.274

16

1.O

1.5

O.583

O.832

O.458

0.653

O.222

O.300

O.278

O.374

18

1.O

1.5

2.O

0.663

0.952

1.21

O.521

0.747

O.952

O.324

O.442

0.535

O.360

O.491

0.595

20

1.0

1.5

2.0

2.5

O.743

1.07

1.37

1.64

0.583

O.841

1.08

1.29

O.453

0.624

O.763

O.874

0 453

O.624

O.763

O.874

22

1

1.5

2

2.5

O.823

1.19

1.53

1.84

O.646

O.936

1.20

1.45

O.612

0.850

1.05

1.21

O.556

O.773

O.953

1.10

25

2.5

3

2.14

2.49

1.68

1.95

1.86

2.08

1.49

1.57

30

2.5

3

3.5

4

2.64

3.01

3.50

3.89

2.08

2.42

2.75

3.05

3.41

3.86

4.25

4.58

2.27

2.58

2.83

3.05

32

2.5

3

3.5

2.84

3.33

3 78

2.23

2.61

2.97

4.21

4.79

5.29

2.63

3.00

3.31

32

4

4.21

3.30

5.73

3.58

35

2.5

3

3.5

4

5

3.14

3.69

4.20

4.68

5.58

2.47

2.89

3.30

3.68

4.38

5.54

6.45

7.16

7.78

8.79

3.22

3.68

4.09

4.45

5.02

36

2.5

3

3.5

4

5

3.24

3.81

4.3_4

4.85

5.75

2.55

2.99

3.41

3.81

4.53

6.18

7.07

7.87

8.56

9.70

3.43

3.93

4.37

4.76

5.39

40

2.5

3

3.5

4

5

6

3.64

4.29

4.90

5.49

6.58

7.55

2.86

3.37

3.85

4.31

5.16

5.93

8.68

9.98

11.16

12.21

13.98

15.34

4.34

4.99

5.58

6.11

6.99

7.67

42

2.5

3

3.5

4

5

6

3.84

4.53

5.18

5.81

6.98

8.03

3.02

3.55

4.07

4.56

5.48

6.30

10.15

11.70

13.10

14.37

16.56

18.22

4.83

5.57

6.24

6.84

7.87

8.58

45

3.5

4

5

5.60

6.23

7.58

4.40

4.94

5.95

16.43

18.07

20.90

7.30

8.03

9.29

45

6

7

8

8.75

9.81

10.8

6.87

7.80

8.44

23.19

24.97

26.30

1O.31

11.10

11.59

50

4

5

6

7

8

7.09

8.58

9.95

11.21

12.35

5.56

6.73

7.81

8.80

9.70

25.56

29.81

33.35

36.23

38.51

10.22

11.93

13.34

14.49

15.41

55

4

5

6

7

8

7.89

9.58

11.15

12.51

13.95

6.19

7.52

8.75

9.90

10.95

34.87

40.95

46.13

50.47

54.04

12.58

14.89

16.77

18.35

19.65

60

4

5

6

7

8

8.69

10.58

12.35

14.01

15.55

6.82

8.30

9.69

11.00

12.21

46.21

54.57

61.82

68.03

73.28

15.4

18.19

20.61

22.68

24.43

65

4

5

6

7

8

9.49

11.58

13.55

15.41

17.15

7.45

9.07

10.64

12.10

13.47

59.78

70.92

80.72

89.27

96.64

18.39

21.82

24.84

27.46

29.74

70

4

5

6

10.29

12.58

14.7

8.08

9.87

11.58

75.78

90.26

103.1

21.65

25.79

29.47

70

7

8

16.81

18.75

13.19

14.72

114.5

124.5

32.72

35.57

75

4

5

6

7

8

11.09

13.58

15.95

18 21

20.35

8.70

10.66

12.52

14.29

15.98

94.4

112.8

129.4

144.2

157.3

25.17

30.08

34.50

38.44

41.94

80

4

5

6

7

8

11.89

14.58

17.15

19.61

21.95

9.33

11.44

13.46

15.39

17.23

115.9

138.9

159.7

178.5

195.4

28.96

34.72

39.93

44.63

48.85

90

5

6

7

8

16.98

20.03

22.97

25.79

13.33

15.72

18.03

20.25

217.1

251.1

282.3

310.9

47.19

54.59

61.38

67.58

100

5

6

7

8

18.58

21.95

25.21

28.35

14.58

17.23

19.79

22.26

282.8

328.2

370.2

408.9

56.57

65.54

74.04

81.78

110

7

8

9

28.01

31.55

34.98

21.99

24.77

27.46

503.4

557.9

608.4

91.54

101.4

11O.6